CN110757395A - Novel heat exchange tube guide head with high centering precision - Google Patents
Novel heat exchange tube guide head with high centering precision Download PDFInfo
- Publication number
- CN110757395A CN110757395A CN201911084569.XA CN201911084569A CN110757395A CN 110757395 A CN110757395 A CN 110757395A CN 201911084569 A CN201911084569 A CN 201911084569A CN 110757395 A CN110757395 A CN 110757395A
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- CN
- China
- Prior art keywords
- heat exchange
- guide head
- exchange tube
- diameter
- centering precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention provides a novel heat exchange tube guide head with high centering precision, which adopts the technical scheme that the guide head comprises a guide head body, wherein the end part of the guide head body is a conical body, the oblique angle α of the conical body is 1-3 degrees, the conical large diameter D1 of the end part of the guide head body is equal to the inner diameter upper limit of a heat exchange tube, the small diameter D2 is smaller than or equal to the inner diameter lower limit of the heat exchange tube, and the large diameter D3 of the guide head is positioned between the inner diameter of a tube hole and the outer diameter of the heat exchange tube.
Description
The technical field is as follows:
the invention relates to the technical field of heat exchangers, in particular to a novel heat exchange tube guide head with high centering precision.
Background art:
referring to fig. 3, the existing heat exchanger equipment products need to be centered by using guide heads during pipe penetration, so that the heat exchange pipes can be conveniently led into pipe holes during pipe penetration. However, the guide head and the heat exchange tube are easy to loosen, so that the centering is inaccurate, steps are generated when the tube enters the tube hole, the resistance of tube penetration is large, and the tube penetration is easy to drop.
The invention content is as follows:
the invention provides a novel heat exchange tube guide head with high centering precision for overcoming the technical problems.
The novel heat exchange tube guide head with high centering precision adopts the technical scheme that the novel heat exchange tube guide head comprises a guide head body, wherein the end part of the guide head body is a conical body, and the oblique angle α of the conical body is 1-3 degrees.
As a further improvement of the invention, the tapered large diameter D1 of the end part of the guide head is equal to the upper limit of the inner diameter of the heat exchange tube, and the small diameter D2 is less than or equal to the lower limit of the inner diameter of the heat exchange tube.
As a further improvement of the invention, the large diameter D3 of the guide head is between the inner diameter of the pipe hole and the outer diameter of the heat exchange pipe.
The invention has the beneficial effects that: the invention makes the diameter of the contact surface of the guide head and the heat exchange tube have an adjusting range (D1-D2) by contacting the small-angle conical surface with the inner wall of the heat exchange tube, thereby realizing that the heat exchange tubes and the guide head with different sizes in a tolerance range can have no clearance, and therefore, the connection is very firm. Meanwhile, the small-angle conical surface has a guiding and centering effect, and guides the device to enter the heat exchange tube and be concentric with the heat exchange tube, so that the tube penetrating process is smoother, and the product quality and the working efficiency are improved.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a guide head of the present invention guiding a heat exchange tube to enter a tube hole;
FIG. 3 is a schematic structural view of a conventional guide head and a heat exchange tube;
in the figure, 1 is a tube plate, 2 is a guide head body, and 3 is a heat exchange tube.
The specific implementation mode is as follows:
the novel heat exchange tube guide head with high centering precision comprises a guide head body 2, wherein the end part of the guide head body 2 is a conical body, and the oblique angle α of the conical body ranges from 1 degree to 3 degrees.
Further, the conical large diameter D1 of the end part of the guide head is equal to the upper limit of the inner diameter of the heat exchange tube, and the small diameter D2 is smaller than or equal to the lower limit of the inner diameter of the heat exchange tube.
Further, the large diameter D3 of the guide head is between the inner diameter of the pipe hole and the outer diameter of the heat exchange pipe.
The invention depends on the contact of the small-angle conical surface with the inner wall of the heat exchange tube 3, so that the diameter of the contact surface of the guide head body 2 and the heat exchange tube 3 has an adjusting range (D1-D2), thereby realizing that the heat exchange tubes 3 and the guide head body 2 with different sizes in a tolerance range can have no clearance, and therefore, the connection is very firm. Meanwhile, the small-angle conical surface has a guiding and centering effect, and guides the device to enter the heat exchange tube 3 and be concentric with the heat exchange tube 3, so that the tube penetrating process is smoother, and the product quality and the working efficiency are improved.
The operation mode is as follows:
1. inserting the guide head body 2 into the heat exchange tube 3;
2. the guide head body 2 is tapped to ensure that the guide head body 2 and the heat exchange tube 3 are not loosened.
Claims (3)
1. The novel heat exchange tube guide head with high centering precision is characterized by comprising a guide head body (2), wherein the end part of the guide head body (2) is a conical body, and the oblique angle α of the conical body ranges from 1 degree to 3 degrees.
2. A novel heat exchange tube guide head with high centering precision as claimed in claim 1, characterized in that: the end taper large diameter D1 of the guide head body (2) is equal to the upper limit of the inner diameter of the heat exchange tube, and the small diameter D2 is less than or equal to the lower limit of the inner diameter of the heat exchange tube.
3. A novel heat exchange tube guide head with high centering precision as claimed in claim 1, characterized in that: the major diameter D3 of the guide head body (2) is between the inner diameter of the pipe hole and the outer diameter of the heat exchange pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084569.XA CN110757395A (en) | 2019-11-08 | 2019-11-08 | Novel heat exchange tube guide head with high centering precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084569.XA CN110757395A (en) | 2019-11-08 | 2019-11-08 | Novel heat exchange tube guide head with high centering precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110757395A true CN110757395A (en) | 2020-02-07 |
Family
ID=69336747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911084569.XA Pending CN110757395A (en) | 2019-11-08 | 2019-11-08 | Novel heat exchange tube guide head with high centering precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110757395A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662634A (en) * | 1979-10-29 | 1981-05-28 | Hitachi Ltd | Pipe inserting guide |
| CN102962806A (en) * | 2012-12-12 | 2013-03-13 | 陕西中明能源投资有限公司 | Penetrating pipe guiding device |
| CN103056824A (en) * | 2012-12-17 | 2013-04-24 | 陕西中明能源投资有限公司 | Through tube guiding head |
| CN203254131U (en) * | 2013-05-07 | 2013-10-30 | 湖北昌发容器制造有限公司 | Efficient pipe threading guiding device |
| CN208374361U (en) * | 2018-06-11 | 2019-01-15 | 湖北华锐化工机械有限公司 | A kind of Tube Sheet of Heat Exchanger plate hole reamer |
-
2019
- 2019-11-08 CN CN201911084569.XA patent/CN110757395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662634A (en) * | 1979-10-29 | 1981-05-28 | Hitachi Ltd | Pipe inserting guide |
| CN102962806A (en) * | 2012-12-12 | 2013-03-13 | 陕西中明能源投资有限公司 | Penetrating pipe guiding device |
| CN103056824A (en) * | 2012-12-17 | 2013-04-24 | 陕西中明能源投资有限公司 | Through tube guiding head |
| CN203254131U (en) * | 2013-05-07 | 2013-10-30 | 湖北昌发容器制造有限公司 | Efficient pipe threading guiding device |
| CN208374361U (en) * | 2018-06-11 | 2019-01-15 | 湖北华锐化工机械有限公司 | A kind of Tube Sheet of Heat Exchanger plate hole reamer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |
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| RJ01 | Rejection of invention patent application after publication |